<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script type="text/javascript">
        import utils from 'https://example.com/js/utils.js';

        const x = 1;

        console.log(x === window.x); //false
        console.log(this === undefined); // true
    </script>
</body>

</html>